7908385 has 8 divisors (see below), whose sum is σ = 9513576. Its totient is φ = 6311040.

The previous prime is 7908371. The next prime is 7908403. The reversal of 7908385 is 5838097.

It can be written as a sum of positive squares in 4 ways, for example, as 1002001 + 6906384 = 1001^2 + 2628^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7908385 - 2⁵ = 7908353 is a prime.

It is a super-3 number, since 3×7908385³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555 + ... + 4015.

It is an arithmetic number, because the mean of its divisors is an integer number (1189197).

Almost surely, 2^7908385 is an apocalyptic number.

It is an amenable number.

7908385 is a deficient number, since it is larger than the sum of its proper divisors (1605191).

7908385 is a wasteful number, since it uses less digits than its factorization.

7908385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 7908385 is about 2812.1850934816. The cubic root of 7908385 is about 199.2336086393.

The spelling of 7908385 in words is "seven million, nine hundred eight thousand, three hundred eighty-five".